The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 28, 2017

Filed:

May. 30, 2013
Applicant:

Ormet Circuits, Inc., San Diego, CA (US);

Inventors:

Catherine Shearer, San Marcos, CA (US);

Michael C Matthews, Encinitas, CA (US);

Peter A Matturi, Del Mar, CA (US);

Eunsook Barber, San Diego, CA (US);

Richard Weaver, San Diego, CA (US);

Assignee:

Ormet Circuits, Inc., San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/00 (2006.01); H01L 21/683 (2006.01);
U.S. Cl.
CPC ...
H01L 24/27 (2013.01); H01L 24/29 (2013.01); H01L 24/30 (2013.01); H01L 24/32 (2013.01); H01L 24/83 (2013.01); H01L 24/92 (2013.01); H01L 21/6836 (2013.01); H01L 24/05 (2013.01); H01L 24/06 (2013.01); H01L 24/94 (2013.01); H01L 2221/68327 (2013.01); H01L 2224/04026 (2013.01); H01L 2224/05639 (2013.01); H01L 2224/05644 (2013.01); H01L 2224/05647 (2013.01); H01L 2224/05663 (2013.01); H01L 2224/05664 (2013.01); H01L 2224/05669 (2013.01); H01L 2224/05673 (2013.01); H01L 2224/05676 (2013.01); H01L 2224/05678 (2013.01); H01L 2224/06181 (2013.01); H01L 2224/27003 (2013.01); H01L 2224/278 (2013.01); H01L 2224/2731 (2013.01); H01L 2224/2732 (2013.01); H01L 2224/27318 (2013.01); H01L 2224/27334 (2013.01); H01L 2224/27438 (2013.01); H01L 2224/27848 (2013.01); H01L 2224/2929 (2013.01); H01L 2224/2932 (2013.01); H01L 2224/2936 (2013.01); H01L 2224/2938 (2013.01); H01L 2224/2939 (2013.01); H01L 2224/2949 (2013.01); H01L 2224/29301 (2013.01); H01L 2224/29305 (2013.01); H01L 2224/29309 (2013.01); H01L 2224/29311 (2013.01); H01L 2224/29313 (2013.01); H01L 2224/29314 (2013.01); H01L 2224/29316 (2013.01); H01L 2224/29317 (2013.01); H01L 2224/29318 (2013.01); H01L 2224/29324 (2013.01); H01L 2224/29338 (2013.01); H01L 2224/29339 (2013.01); H01L 2224/29344 (2013.01); H01L 2224/29347 (2013.01); H01L 2224/29349 (2013.01); H01L 2224/29355 (2013.01); H01L 2224/29357 (2013.01); H01L 2224/29363 (2013.01); H01L 2224/29364 (2013.01); H01L 2224/29369 (2013.01); H01L 2224/29371 (2013.01); H01L 2224/29373 (2013.01); H01L 2224/29499 (2013.01); H01L 2224/30181 (2013.01); H01L 2224/3201 (2013.01); H01L 2224/325 (2013.01); H01L 2224/32145 (2013.01); H01L 2224/32225 (2013.01); H01L 2224/32245 (2013.01); H01L 2224/32503 (2013.01); H01L 2224/32507 (2013.01); H01L 2224/8384 (2013.01); H01L 2224/83447 (2013.01); H01L 2224/83825 (2013.01); H01L 2224/83856 (2013.01); H01L 2224/83862 (2013.01); H01L 2224/92 (2013.01); H01L 2224/94 (2013.01); H01L 2924/01322 (2013.01); H01L 2924/10253 (2013.01); H01L 2924/15747 (2013.01);
Abstract

Sintering die-attach materials provide a lead-free solution for semiconductor packages with superior electrical, thermal and mechanical performance to prior art alternatives. Wafer-applied sintering materials form a metallurgical bond to both semiconductor die and adherends as well as throughout the die-attach joint and do not remelt at the original process temperature. Application to either one or both sides of the wafer, as well as paste a film application are disclosed.


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